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. 2017 May 22;114(25):6569–6574. doi: 10.1073/pnas.1620780114

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Fig. 4. — L. albipes females have distinguishable Dufour’s gland chemical profiles as exhibited both by behavior (solitary versus social) and by caste (workers, social foundresses, and solitary reproductives). (A) The LDA accurately differentiated social vs. solitary forms of L. albipes: canonical 1, 100%; Wilk’s lambda, P = 2.169e-05. Cross-validation was able to correctly classify 100% of the samples. (B) The LDA was able to accurately place individuals by caste (dimension 1, 89.1%; dimension 2, 10.9%; Wilk’s lambda, P = 0.0074), and cross-validation correctly classified samples 96.4% of the time.